CN106298403B - A kind of electron beam sympodium method of calibration - Google Patents
A kind of electron beam sympodium method of calibration Download PDFInfo
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- CN106298403B CN106298403B CN201610771151.6A CN201610771151A CN106298403B CN 106298403 B CN106298403 B CN 106298403B CN 201610771151 A CN201610771151 A CN 201610771151A CN 106298403 B CN106298403 B CN 106298403B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
- H01J9/42—Measurement or testing during manufacture
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Abstract
The invention discloses a kind of electron beam sympodium method of calibration, after electron gun changes filament, one piece of stainless steel experiment target is installed in welding booth on workbench, sympodium verifies after carrying out sympodium end of operation, wherein, using simple soldering test, whether the position relationship of thin straight bead of the central point of the weldering spot obtained by observing electron beam in different aggregation positions bombardment to target with crossing first weldering spot central point is consistent, to judge whether the centering situation of electron gun is preferable, the effect after sympodium can intuitively and objectively be presented in this way, contribute to timely rectification of pinpointing the problems in time, hidden danger is eliminated in bud, welding quality is effectively ensured.
Description
Technical field：
The present invention relates to a kind of electron beam sympodium method of calibration, apply in the electron gun pair of electron-beam welding equipment.
Background technology：
Electron beam gun room is by the high vacuum that is formed containing electron gun grid assembling assembly and anode and its corresponding support member
Cavity, electronic beam current caused by electron gun are then passed through the sympodium coil of lower rifle room, focused on by an interface of upper rifle room bottom
The working surface arrived at after coil, deflection coil in welding booth.Electron gun after filament has been changed it cannot be guaranteed that electron beam every time
The axle center of stream and the axis coinciding of focus coil by adjusting sympodium potentiometer, it is necessary to realize centering (referred to as sympodium), side
Method is as follows：
A, a thick copper coin is placed in welding booth and is placing one piece 200 square centimeters of stainless steel plate target thereon.
B, focus current is adjusted into zero, X-Y deflections to close, and X-Y sympodium potentiometers is adjusted to centre position.
C, pull out a small line and adjusting focus current make it focus on the surface of stainless steel plate, then slowly defocus,
Hot spot is observed, if diverging is good with shrinking explanation sympodium with one heart, is otherwise modified by adjusting X-Y sympodium potentiometers,
Until hot spot can dissipate and shrink simultaneously during focusing.
D, close line after completing sympodium and take out stainless steel plate.
From above sympodium process, whether electron beam sympodium is good to rely on the personal observation experience of operator completely, with
Subjective sensation determines that its process is that dynamic, different people has different cognition degrees, therefore electron beam pair after the completion of sympodium
In real effect and unknowable.If because personal experience's deficiency sympodium is ineffective, once adjustment focal position and increase are welded
When connecing line, there will be the problems of welded quality such as part weld excursion, not weld penetration.
The content of the invention：
It is an object of the invention to provide a kind of electron beam sympodium method of calibration, so as to which welding quality be effectively ensured.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that to realize：
A kind of electron beam sympodium method of calibration, after electron gun changes filament, one piece is installed on workbench in welding booth
Stainless steel tests target, and sympodium checking procedure is as follows after carrying out sympodium end of operation：
1) mobile work platform makes beam spot fall on target material surface, then the line size of setting bombardment stainless steel experiment target
For 3-10mA；
2) adjustment focus current makes electron beam be focused in upward, and beam energy center is in the top of stainless target, pressure
Beam switch is unclamped after 1 second, and 1# weldering spots are obtained on stainless steel experiment target；
3) stainless steel experiment target 5-10mm is moved along +X direction, adjustment focus current makes electron beam be focused in surface, beam
On the surface of stainless target, pressure beam switch is unclamped after 1 second at stream energy center, and 2# is obtained on stainless steel experiment target
Weld spot；
4) stainless steel experiment target 5-10mm is moved along +X direction again, adjustment stream focus current makes electron beam in poly- downwards
Jiao, beam energy center move down into the lower section of stainless steel experiment target material surface, and pressure beam switch unclamps after 1 second, obtains 3# welderings
Spot；
5) stainless steel experiment target 5-10mm is moved along +X direction again, adjustment focus current makes beam spot focus fall not
Steel experiment target material surface become rusty further below, pressure beam switch unclamps after 1 second, obtains 4# weldering spots；
6) stainless steel is tested into target and moves to 1# weldering spots position, the manual continuous side of NC control operations selection along -X direction
Formula, line is set as 0.2-0.5mA, pressure+X buttons make target at the uniform velocity be moved along +X direction, while continuously descend line, make stainless steel
One is obtained on experiment target and crosses 1# weldering spot central points, and through the bonding wire of all weldering spots；
7) it is all to weld the theory consistent with the relativeness of bonding wire of spot central point through weldering spot center situation to observe bonding wire on target
Bright sympodium is good, not in place for sympodium calibration if the relative position of weldering spot central point and bonding wire is inconsistent, is adjusted again
It is whole.
Further improve of the invention is that the size of stainless steel experiment target is：Long 200mm, wide 100mm and thickness
10mm。
Further improve of the invention is that the bonding wire width in step 6) is 0.5mm-1mm.
A kind of electron beam sympodium method of calibration, after electron gun changes filament, one piece is installed on workbench in welding booth
Stainless steel tests target, and sympodium checking procedure is as follows after carrying out sympodium end of operation：
1) mobile work platform makes beam spot fall on target material surface, and adjustment focus current makes electron beam be focused in surface, then
Beam stream≤1mA of setting bombardment stainless steel experiment target, pressure beam switch unclamp after 1 second, on stainless steel experiment target
Spot is welded to 1#；
2) stainless steel experiment target 5-10mm is moved along +X direction, then the line ratio of setting bombardment stainless steel experiment target
Last big 2-3 times, pressure beam switch is unclamped after 1 second, and 2# weldering spots are obtained on stainless steel experiment target；
4) stainless steel experiment target 5-10mm is moved along +X direction again, then the line of setting bombardment stainless steel experiment target
Bigger 2-3 times than last, pressure beam switch unclamps after 1 second, obtains 3# weldering spots；
5) stainless steel experiment target 5-10mm is moved along +X direction again, then the line of setting bombardment stainless steel experiment target
Bigger 2-3 times than last, pressure beam switch unclamps after 1 second, obtains 4# weldering spots；
6) stainless steel is tested into target and moves to 1# weldering spots position, the manual continuous side of NC control operations selection along -X direction
Formula, line is set as 0.2-0.5mA, pressure+X buttons make target at the uniform velocity be moved along +X direction, while continuously descend line, make stainless steel
One is obtained on experiment target and crosses 1# weldering spot central points, and through the bonding wire of all weldering spots；
7) relative positions of all weldering spot central points and bonding wire on target are observed, when the central points and bonding wire of all weldering spots
Relative position is consistent, illustrates that sympodium calibration is good, otherwise illustrates that sympodium is forbidden, and is readjusted.
Further improve of the invention is that the size of stainless steel experiment target is：Long 200mm, wide 100mm and thickness
10mm。
Further improve of the invention is that the bonding wire width in step 6) is 0.5mm-1mm.
Compared with prior art, the present invention has following beneficial effect：
The present invention uses simple soldering test, by observing electron beam in different aggregation positions or line of different sizes
Bombard obtained on target weldering spot central point with cross first weldering spot central point thin straight bead position relationship whether
Unanimously, judge whether the centering situation of electron gun is preferable, in this way can be intuitively and after sympodium objectively be presented
Effect, contribute to timely rectification of pinpointing the problems in time, hidden danger is eliminated in bud, welding quality is effectively ensured.
Brief description of the drawings：
Fig. 1 is the electron beam trace contrast schematic diagram before and after sympodium；Wherein, Fig. 1 (a) is the poly- of the electron beam of no sympodium
Focal track mark schematic diagram, Fig. 1 (b) are the good Electron Beam Focusing schematic diagram of sympodium.
In figure：1- focus coils, 2- are focused on upwards, and 3- surfaces focus on, and 4- is focused on downwards, 5- workpiece.
Fig. 2 is different focal positions in the 4 weldering spots formed along in stainless steel experiment target X-direction.
Fig. 3 is the relation schematic diagram of the weldering spot that sympodium quality is good in embodiment 1 and bonding wire.
Fig. 4 is the relation schematic diagram of the weldering spot that sympodium quality is bad in embodiment 1 and bonding wire.
Fig. 5 is the relation schematic diagram of the weldering spot that sympodium quality is good in embodiment 2 and bonding wire.
Fig. 6 is the relation schematic diagram of the weldering spot that sympodium quality is bad in embodiment 2 and bonding wire.
Embodiment：
The present invention is made further instructions below in conjunction with drawings and examples.
Embodiment 1：
After electron gun changes filament, a block length 200mm, wide 100mm and thickness are installed in welding booth on workbench
10mm stainless steel experiment target, sympodium checking procedure is as follows after carrying out sympodium end of operation：
1) mobile work platform makes beam spot fall on target material surface under manual mode, then setting bombardment stainless steel experiment target
The line size of material is some value (being such as set as 5mA) in 3-10mA,
2) adjustment focus current makes electron beam be focused in upward, and beam energy center is in the top of stainless target, pressure
Beam switch is unclamped after 1 second, and it is as shown in Figure 2 that 1# weldering spots are obtained on stainless steel experiment target；
3) stainless steel experiment target 10mm is moved along +X direction, adjustment focus current makes electron beam be focused in surface, line
On the surface of stainless target, pressure beam switch is unclamped center of energy after 1 second, and 2# welderings are obtained on stainless steel experiment target
Spot is as shown in Figure 2；
4) stainless steel experiment target 10mm being moved along +X direction again, adjustment stream focus current makes electron beam be focused in downward,
Beam energy center moves down into the lower section of stainless steel experiment target material surface, and pressure beam switch unclamps after 1 second, obtains 3# welderings spot such as
Shown in Fig. 2；
5) stainless steel experiment target 10mm is moved along +X direction again, adjustment focus current makes beam spot focus fall stainless
Further below, pressure beam switch unclamps steel experiment target material surface after 1 second, and it is as shown in Figure 2 to obtain 4# weldering spots.
6) stainless steel is tested into target and moves to 1# weldering spots position, the manual continuous side of NC control operations selection along -X direction
Formula, line is set as 0.2mA, pressure+X buttons make target at the uniform velocity be moved along +X direction, while continuously descend line, test stainless steel
One is obtained on target and crosses 1# weldering spot central points, and through the bonding wire of all weldering spots, as shown in figure 3, the bonding wire width requirement exists
Between 0.5mm-1mm.
7) observe bonding wire on target and pass through weldering spot center situation, as shown in figure 3, all weldering spot central points and 0.5mm-1mm
The relativeness of the bonding wire of width it is consistent (by bonding wire cover or equidistant deviation) illustrate that sympodium is good, weld spot as indicated at 4
The relative position of central point and bonding wire is inconsistent, is calibrated for sympodium not in place.Similarly, fixed-focus position can be taken, is changed
Line size obtains different beam spots, is rule with small line, such as inconsistent with the relative position of the straight line, then illustrates sympodium not
It is good, need sympodium again.
In order to be further appreciated that to the present invention, now its operation principle is made as described below：
To that can produce an approximate circle beam spot in static stainless target, electron beam makes to be banged electron beam bombardment
Position instant melting is hit, molten metal molten bath is flowed from center to surrounding, and a center is formed on target after stopping lower beam
Sagging approximate circle weldering spot；A thickness consistent string bead can be formed when on beam bombardment to the target uniformly moved
Seam.
Electronic beam current focal track contrast before and after sympodium is as shown in figure 1, Fig. 1 (a) is the poly- of the electron beam of no sympodium
Focal track mark：The driving current of focus coil 1 is adjusted, the focus of electronic beam current is located at more than the surface of workpiece 5 respectively and (gathers upwards
It is burnt 2), (surface focuses on 3) on workpiece surface, (focus on 4 downwards) below workpiece surface, focus coil is deviateed in their focal position
1 axle center；Fig. 1 (b) is the good Electron Beam Focusing situation of sympodium：It is still poly- downwards that 2, surface focusing 3 is either focused on upwards
Jiao 4, focus is all the time on the axle center of focus coil 1.
In order to observe, whether focus is concentric after sympodium, and the arbitrary line direction that target can be tested along metal stainless steel is distinguished
By it is upward focus on, surface focuses on, in line bombardment caused by 3-5 different focal positions focusing on downwards to target, make every time
The position of bombardment target is misaligned and maintains a certain distance, and the independent circular weldering spot with central point is formed, then with continuous
0.2-0.5mA small line form wide thin straight weldering by direction of the starting point along weldering spot distribution of the central point of first beam spot
Seam, through all circular weldering spots.
The relative position of several weldering spot central points and weld seam on target is observed, as long as the central point of all weldering spots welds with fine rule
The relative position of seam is consistent, illustrates sympodium calibration well as shown in figure 3, otherwise illustrating that sympodium is forbidden, need to readjust such as Fig. 4 institutes
Show.
Embodiment 2：
A kind of electron beam sympodium method of calibration, after electron gun changes filament, one piece is installed on workbench in welding booth
Long 200mm, wide 100mm and thick 10mm stainless steel experiment target, sympodium checking procedure is as follows after carrying out sympodium end of operation：
1) mobile work platform makes beam spot fall on target material surface, and adjustment focus current makes electron beam be focused in surface, then
Beam stream≤1mA of setting bombardment stainless steel experiment target, pressure beam switch unclamp after 1 second, on stainless steel experiment target
Spot is welded to 1#；
2) stainless steel experiment target 5-10mm is moved along +X direction, then the line ratio of setting bombardment stainless steel experiment target
Last big 2-3 times, pressure beam switch is unclamped after 1 second, and 2# weldering spots are obtained on stainless steel experiment target；
4) stainless steel experiment target 5-10mm is moved along +X direction again, then the line of setting bombardment stainless steel experiment target
Bigger 2-3 times than last, pressure beam switch unclamps after 1 second, obtains 3# weldering spots；
5) stainless steel experiment target 5-10mm is moved along +X direction again, then the line of setting bombardment stainless steel experiment target
Bigger 2-3 times than last, pressure beam switch unclamps after 1 second, obtains 4# weldering spots；
6) stainless steel is tested into target and moves to 1# weldering spots position, the manual continuous side of NC control operations selection along -X direction
Formula, line is set as 0.2-0.5mA, pressure+X buttons make target at the uniform velocity be moved along +X direction, while continuously descend line, make stainless steel
One is obtained on experiment target and crosses 1# weldering spot central points, and through the bonding wire of all weldering spots；
7) relative positions of all weldering spot central points and bonding wire on target are observed, when the central points and bonding wire of all weldering spots
Relative position is consistent, illustrates that sympodium calibration is good, otherwise illustrates that sympodium is forbidden, and is readjusted.
In order to observe, whether focus is concentric after sympodium, can test the arbitrary line direction of target progressively along metal stainless steel
Increase electronic beam current, bombard respectively on target, produce the 3-5 weldering spots to change from small to big, the position for bombarding target every time does not weigh
Merging maintains a certain distance, and the independent circular weldering spot with central point is formed, then with continuous 0.2-0.5mA small line
Wide thin straight bonding wire is formed by direction of the starting point along weldering spot distribution of the central point of first beam spot, through all circular welderings
Spot.
The relative positions of several weldering spot central points and bonding wire on target are observed, as long as the central point and bonding wire of all weldering spots
Relative position is consistent, illustrates sympodium calibration well as shown in figure 5, otherwise illustrating that sympodium is forbidden, need to readjust as shown in Figure 6.
Claims (6)
1. a kind of electron beam sympodium method of calibration, it is characterised in that after electron gun changes filament, in welding booth on workbench
One piece of stainless steel experiment target of installation, sympodium checking procedure is as follows after carrying out sympodium end of operation：
1) mobile work platform makes beam spot fall on target material surface, then sets the line size of bombardment stainless steel experiment target as 3-
10mA；
2) adjustment focus current makes electron beam be opened in focusing upwards, beam energy center in the top of stainless target, pressure beam
Unclamped after closing 1 second, 1# weldering spots are obtained on stainless steel experiment target；
3) stainless steel experiment target 5-10mm is moved along +X direction, adjustment focus current makes electron beam be focused in surface, line energy
On the surface of stainless target, pressure beam switch is unclamped after 1 second at amount center, and 2# welderings are obtained on stainless steel experiment target
Spot；
4) stainless steel experiment target 5-10mm is moved along +X direction again, adjustment stream focus current makes electron beam be focused in downward, beam
Stream energy center moves down into the lower section of stainless steel experiment target material surface, and pressure beam switch unclamps after 1 second, obtains 3# weldering spots；
5) stainless steel experiment target 5-10mm is moved along +X direction again, adjustment focus current makes beam spot focus fall in stainless steel
Test target material surface further below, pressure beam switch unclamps after 1 second, obtains 4# weldering spots；
6) stainless steel to be tested into target and moves to 1# weldering spots position along -X direction, NC control operations select manual continuation mode, if
It is 0.2-0.5mA to determine line, and pressure+X buttons make target at the uniform velocity be moved along +X direction, while continuously descend line, test stainless steel
One is obtained on target and crosses 1# weldering spot central points, and through the bonding wire of all weldering spots；
7) bonding wire is observed on target through weldering spot center situation, and spot central point is consistent with the relativeness of bonding wire illustrates to close for all welderings
Axle is good, not in place for sympodium calibration if the relative position of weldering spot central point and bonding wire is inconsistent, is readjusted.
2. a kind of electron beam sympodium method of calibration according to claim 1, it is characterised in that stainless steel tests the chi of target
It is very little to be：Long 200mm, wide 100mm and thick 10mm.
A kind of 3. electron beam sympodium method of calibration according to claim 1, it is characterised in that the bonding wire width in step 6)
For 0.5mm-1mm.
4. a kind of electron beam sympodium method of calibration, it is characterised in that after electron gun changes filament, in welding booth on workbench
One piece of stainless steel experiment target of installation, sympodium checking procedure is as follows after carrying out sympodium end of operation：
1) mobile work platform makes beam spot fall on target material surface, and adjustment focus current makes electron beam be focused in surface, then sets
Beam stream≤1mA of stainless steel experiment target is bombarded, pressure beam switch is unclamped after 1 second, and 1# is obtained on stainless steel experiment target
Weld spot；
2) stainless steel experiment target 5-10mm is moved along +X direction, then the line of setting bombardment stainless steel experiment target is than upper one
Secondary big 2-3 times, pressure beam switch is unclamped after 1 second, and 2# weldering spots are obtained on stainless steel experiment target；
4) stainless steel experiment target 5-10mm is moved along +X direction again, then the line of setting bombardment stainless steel experiment target is than upper
Once big 2-3 times, pressure beam switch unclamps after 1 second, obtains 3# weldering spots；
5) stainless steel experiment target 5-10mm is moved along +X direction again, then the line of setting bombardment stainless steel experiment target is than upper
Once big 2-3 times, pressure beam switch unclamps after 1 second, obtains 4# weldering spots；
6) stainless steel to be tested into target and moves to 1# weldering spots position along -X direction, NC control operations select manual continuation mode, if
It is 0.2-0.5mA to determine line, and pressure+X buttons make target at the uniform velocity be moved along +X direction, while continuously descend line, test stainless steel
One is obtained on target and crosses 1# weldering spot central points, and through the bonding wire of all weldering spots；
7) observe target on it is all weldering spot central points and bonding wire relative positions, when it is all weldering spots central points and bonding wire it is relative
Position consistency, illustrate that sympodium calibration is good, otherwise illustrate that sympodium is forbidden, and is readjusted.
5. a kind of electron beam sympodium method of calibration according to claim 4, it is characterised in that stainless steel tests the chi of target
It is very little to be：Long 200mm, wide 100mm and thick 10mm.
A kind of 6. electron beam sympodium method of calibration according to claim 4, it is characterised in that the bonding wire width in step 6)
For 0.5mm-1mm.
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| CN103474308A (en) * | 2013-09-30 | 2013-12-25 | 桂林狮达机电技术工程有限公司 | Electronic gun with electromagnetic centering device |
| CN104959724A (en) * | 2015-07-15 | 2015-10-07 | 桂林狮达机电技术工程有限公司 | Electron beam rapid forming device characteristic point data collecting device and method |
| CN105140088A (en) * | 2015-07-24 | 2015-12-09 | 北京航空航天大学 | Focusing device of large-beam electron beam shooting micro-beam spot X-ray source and application method of focusing device |
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2016
- 2016-08-29 CN CN201610771151.6A patent/CN106298403B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02310499A (en) * | 1989-05-26 | 1990-12-26 | Shimadzu Corp | X-ray diffraction device |
| CN1144015A (en) * | 1994-01-21 | 1997-02-26 | 光电子有限公司 | X-ray sources with shaped radiation pattern |
| CN102107326A (en) * | 2009-12-23 | 2011-06-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Centering process method for electron beam of plane annular welding line |
| CN103474308A (en) * | 2013-09-30 | 2013-12-25 | 桂林狮达机电技术工程有限公司 | Electronic gun with electromagnetic centering device |
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Address after: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee after: AECC AVIATION POWER CO., LTD. Address before: Weiyang Xu Jia Wan 710021 Shaanxi city of Xi'an Province Patentee before: AVIC AVIATION ENGINE CORPORATION PLC |